Really liking all the cars you wish Cris could build for you. I think I will have one of each. ;-)
The thing is many of them are already available.
The split window Corvette that y cymro mentions can be done on a late model Vette and is available from Karls Customs Corvettes.
The Ferrari Dino replica that Mister Towed likes is an MR2 is a kit by J.H. Classics.
And the 1960,s Formula 1 replica that WCA likes is called the Tiger ERA HSS.
As for an early 50,s or 60,s Corvette how about this idea of a modern styled classic Cvette. Take a Pontiac Solstice, remove front and rear parts and make new body parts something like this.
